How to use php mail() in sololearn mobile app ?

Question

it gives error for SMTP mail server

Answer 1

Warning: mail(): Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set() in ..\Playground\ PHP Warning: mail(): Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set() in ..\Playground\

Answer 2

<?php
$to = "[email protected]";
$subject = "My subject";
$txt = "Hello world!";
$headers = "From: [email protected]" . "\r\n" .
"CC: [email protected]";
mail($to,$subject,$txt,$headers);
?>

Answer 3

but it doesn't. it works well in pc. but i want to try it here